解构数组中的嵌套对象

Question

我基本上想拉出数组中的第一个 object 并得到它的名字。 这里唯一的挑战是我试图在父 object 中解构它：

 const exampleObject = { collection: [{ name: "First Object", }, { name: "Second Object", }], }; const { collection: [firstObject: { name }] } = exampleObject; console.log(firstObject);

有可能吗？

Answer 1

您需要将其切换为：

{name: firstObject}
  |        |________ New variable name
  |    
  |_________________ Property name

---

 const exampleObject = {collection: [{name: "First Object",}, {name: "Second Object",}],} const { collection: [{ name: firstObject }] } = exampleObject console.log(firstObject)

Answer 2

如果您需要第一个 object 的名称，您应该写

const {
  collection: [{ name }]
} = exampleObject;

console.log(name);